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<div class="subTitle">org.apache.commons.math3.fitting.leastsquares</div>
<h2 title="Class LeastSquaresFactory" class="title">Class LeastSquaresFactory</h2>
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<pre>public class <span class="strong">LeastSquaresFactory</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">A Factory for creating <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>s.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>3.3</dd></dl>
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#countEvaluations(org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem,%20org.apache.commons.math3.util.Incrementor)">countEvaluations</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
                <a href="../../../../../../org/apache/commons/math3/util/Incrementor.html" title="class in org.apache.commons.math3.util">Incrementor</a>&nbsp;counter)</code>
<div class="block">Count the evaluations of a particular problem.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int)">create</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
      <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
      int&nbsp;maxEvaluations,
      int&nbsp;maxIterations)</code>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealMatrix,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int)">create</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
      <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
      <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
      int&nbsp;maxEvaluations,
      int&nbsp;maxIterations)</code>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealMatrix,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int,%20boolean,%20org.apache.commons.math3.fitting.leastsquares.ParameterValidator)">create</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
      <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
      <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
      <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
      int&nbsp;maxEvaluations,
      int&nbsp;maxIterations,
      boolean&nbsp;lazyEvaluation,
      <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/ParameterValidator.html" title="interface in org.apache.commons.math3.fitting.leastsquares">ParameterValidator</a>&nbsp;paramValidator)</code>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.analysis.MultivariateVectorFunction,%20org.apache.commons.math3.analysis.MultivariateMatrixFunction,%20double[],%20double[],%20org.apache.commons.math3.linear.RealMatrix,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int)">create</a></strong>(<a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateVectorFunction</a>&nbsp;model,
      <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateMatrixFunction</a>&nbsp;jacobian,
      double[]&nbsp;observed,
      double[]&nbsp;start,
      <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
      <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
      int&nbsp;maxEvaluations,
      int&nbsp;maxIterations)</code>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#evaluationChecker(org.apache.commons.math3.optim.ConvergenceChecker)">evaluationChecker</a></strong>(<a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/optim/PointVectorValuePair.html" title="class in org.apache.commons.math3.optim">PointVectorValuePair</a>&gt;&nbsp;checker)</code>
<div class="block">View a convergence checker specified for a <a href="../../../../../../org/apache/commons/math3/optim/PointVectorValuePair.html" title="class in org.apache.commons.math3.optim"><code>PointVectorValuePair</code></a> as one
 specified for an <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem.Evaluation</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#model(org.apache.commons.math3.analysis.MultivariateVectorFunction,%20org.apache.commons.math3.analysis.MultivariateMatrixFunction)">model</a></strong>(<a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateVectorFunction</a>&nbsp;value,
     <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateMatrixFunction</a>&nbsp;jacobian)</code>
<div class="block">Combine a <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis"><code>MultivariateVectorFunction</code></a> with a <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis"><code>MultivariateMatrixFunction</code></a> to produce a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>MultivariateJacobianFunction</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#weightDiagonal(org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem,%20org.apache.commons.math3.linear.RealVector)">weightDiagonal</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
              <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;weights)</code>
<div class="block">Apply a diagonal weight matrix to the <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#weightMatrix(org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem,%20org.apache.commons.math3.linear.RealMatrix)">weightMatrix</a></strong>(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
            <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weights)</code>
<div class="block">Apply a dense weight matrix to the <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Method Detail</h3>
<a name="create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.linear.RealMatrix, org.apache.commons.math3.optim.ConvergenceChecker, int, int, boolean, org.apache.commons.math3.fitting.leastsquares.ParameterValidator)">
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<h4>create</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;create(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
                         <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
                         int&nbsp;maxEvaluations,
                         int&nbsp;maxIterations,
                         boolean&nbsp;lazyEvaluation,
                         <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/ParameterValidator.html" title="interface in org.apache.commons.math3.fitting.leastsquares">ParameterValidator</a>&nbsp;paramValidator)</pre>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements. There will be no weights applied (unit weights).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>model</code> - the model function. Produces the computed values.</dd><dd><code>observed</code> - the observed (target) values</dd><dd><code>start</code> - the initial guess.</dd><dd><code>weight</code> - the weight matrix</dd><dd><code>checker</code> - convergence checker</dd><dd><code>maxEvaluations</code> - the maximum number of times to evaluate the model</dd><dd><code>maxIterations</code> - the maximum number to times to iterate in the algorithm</dd><dd><code>lazyEvaluation</code> - Whether the call to <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#evaluate(org.apache.commons.math3.linear.RealVector)"><code>LeastSquaresProblem.evaluate(RealVector)</code></a>
 will defer the evaluation until access to the value is requested.</dd><dd><code>paramValidator</code> - Model parameters validator.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the specified General Least Squares problem.</dd><dt><span class="strong">Since:</span></dt>
  <dd>3.4</dd></dl>
</li>
</ul>
<a name="create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.optim.ConvergenceChecker, int, int)">
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<h4>create</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;create(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
                         <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
                         int&nbsp;maxEvaluations,
                         int&nbsp;maxIterations)</pre>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements. There will be no weights applied (unit weights).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>model</code> - the model function. Produces the computed values.</dd><dd><code>observed</code> - the observed (target) values</dd><dd><code>start</code> - the initial guess.</dd><dd><code>checker</code> - convergence checker</dd><dd><code>maxEvaluations</code> - the maximum number of times to evaluate the model</dd><dd><code>maxIterations</code> - the maximum number to times to iterate in the algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>the specified General Least Squares problem.</dd></dl>
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<a name="create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.linear.RealVector, org.apache.commons.math3.linear.RealMatrix, org.apache.commons.math3.optim.ConvergenceChecker, int, int)">
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<h4>create</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;create(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;observed,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;start,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
                         <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
                         int&nbsp;maxEvaluations,
                         int&nbsp;maxIterations)</pre>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>model</code> - the model function. Produces the computed values.</dd><dd><code>observed</code> - the observed (target) values</dd><dd><code>start</code> - the initial guess.</dd><dd><code>weight</code> - the weight matrix</dd><dd><code>checker</code> - convergence checker</dd><dd><code>maxEvaluations</code> - the maximum number of times to evaluate the model</dd><dd><code>maxIterations</code> - the maximum number to times to iterate in the algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>the specified General Least Squares problem.</dd></dl>
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<a name="create(org.apache.commons.math3.analysis.MultivariateVectorFunction, org.apache.commons.math3.analysis.MultivariateMatrixFunction, double[], double[], org.apache.commons.math3.linear.RealMatrix, org.apache.commons.math3.optim.ConvergenceChecker, int, int)">
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<h4>create</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;create(<a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateVectorFunction</a>&nbsp;model,
                         <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateMatrixFunction</a>&nbsp;jacobian,
                         double[]&nbsp;observed,
                         double[]&nbsp;start,
                         <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weight,
                         <a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;checker,
                         int&nbsp;maxEvaluations,
                         int&nbsp;maxIterations)</pre>
<div class="block">Create a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>
 from the given elements.
 <p>
 This factory method is provided for continuity with previous interfaces. Newer
 applications should use <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int)"><code>create(MultivariateJacobianFunction, RealVector,
 RealVector, ConvergenceChecker, int, int)</code></a>, or <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html#create(org.apache.commons.math3.fitting.leastsquares.MultivariateJacobianFunction,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealVector,%20org.apache.commons.math3.linear.RealMatrix,%20org.apache.commons.math3.optim.ConvergenceChecker,%20int,%20int)"><code>create(MultivariateJacobianFunction,
 RealVector, RealVector, RealMatrix, ConvergenceChecker, int, int)</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>model</code> - the model function. Produces the computed values.</dd><dd><code>jacobian</code> - the jacobian of the model with respect to the parameters</dd><dd><code>observed</code> - the observed (target) values</dd><dd><code>start</code> - the initial guess.</dd><dd><code>weight</code> - the weight matrix</dd><dd><code>checker</code> - convergence checker</dd><dd><code>maxEvaluations</code> - the maximum number of times to evaluate the model</dd><dd><code>maxIterations</code> - the maximum number to times to iterate in the algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>the specified General Least Squares problem.</dd></dl>
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<h4>weightMatrix</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;weightMatrix(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
                               <a href="../../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;weights)</pre>
<div class="block">Apply a dense weight matrix to the <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>problem</code> - the unweighted problem</dd><dd><code>weights</code> - the matrix of weights</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a> with the weights applied. The original
         <code>problem</code> is not modified.</dd></dl>
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<h4>weightDiagonal</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;weightDiagonal(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
                                 <a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a>&nbsp;weights)</pre>
<div class="block">Apply a diagonal weight matrix to the <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>problem</code> - the unweighted problem</dd><dd><code>weights</code> - the diagonal of the weight matrix</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a> with the weights applied. The original
         <code>problem</code> is not modified.</dd></dl>
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<a name="countEvaluations(org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem, org.apache.commons.math3.util.Incrementor)">
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<h4>countEvaluations</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;countEvaluations(<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;problem,
                                   <a href="../../../../../../org/apache/commons/math3/util/Incrementor.html" title="class in org.apache.commons.math3.util">Incrementor</a>&nbsp;counter)</pre>
<div class="block">Count the evaluations of a particular problem. The <code>counter</code> will be
 incremented every time <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#evaluate(org.apache.commons.math3.linear.RealVector)"><code>LeastSquaresProblem.evaluate(RealVector)</code></a> is called on
 the <em>returned</em> problem.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>problem</code> - the problem to track.</dd><dd><code>counter</code> - the counter to increment.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a least squares problem that tracks evaluations</dd></dl>
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<h4>evaluationChecker</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>&gt;&nbsp;evaluationChecker(<a href="../../../../../../org/apache/commons/math3/optim/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optim">ConvergenceChecker</a>&lt;<a href="../../../../../../org/apache/commons/math3/optim/PointVectorValuePair.html" title="class in org.apache.commons.math3.optim">PointVectorValuePair</a>&gt;&nbsp;checker)</pre>
<div class="block">View a convergence checker specified for a <a href="../../../../../../org/apache/commons/math3/optim/PointVectorValuePair.html" title="class in org.apache.commons.math3.optim"><code>PointVectorValuePair</code></a> as one
 specified for an <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem.Evaluation</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>checker</code> - the convergence checker to adapt.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a convergence checker that delegates to <code>checker</code>.</dd></dl>
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<h4>model</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares">MultivariateJacobianFunction</a>&nbsp;model(<a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateVectorFunction</a>&nbsp;value,
                                 <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateMatrixFunction</a>&nbsp;jacobian)</pre>
<div class="block">Combine a <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateVectorFunction.html" title="interface in org.apache.commons.math3.analysis"><code>MultivariateVectorFunction</code></a> with a <a href="../../../../../../org/apache/commons/math3/analysis/MultivariateMatrixFunction.html" title="interface in org.apache.commons.math3.analysis"><code>MultivariateMatrixFunction</code></a> to produce a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/MultivariateJacobianFunction.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>MultivariateJacobianFunction</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the vector value function</dd><dd><code>jacobian</code> - the Jacobian function</dd>
<dt><span class="strong">Returns:</span></dt><dd>a function that computes both at the same time</dd></dl>
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